Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The total average positive body mass-specific mechanical power during running in humans and ostriches and the average positive body mass-specific mechanical power estimated to be attributed to muscle fibres. The asterisk denotes a significant difference between ostriches and humans (p < 0.05). White bars, ostrich; black bars, human.
